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Tap water quality report

Napoleon, OH

EPA monitoring detected 25 contaminants across the 1 water supplier serving Napoleon. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

1
water supplier
8,858
people served
25
contaminants found
Ohio rankings Lead in Ohio PFAS in Ohio

What was found in Napoleon's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
7440 µg/L 74%
of the EPA limit 10000 µg/L
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Fluoride
1091.2 µg/L 27%
of the EPA limit 4000 µg/L
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
TTHM
70.27 µg/L 88%
of the EPA limit 80 µg/L
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Copper
47.8 µg/L 3.7%
of the EPA limit 1300 µg/L
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Chloroform
39.425 µg/L
No EPA limit set
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
26.5 µg/L 44%
of the EPA limit 60 µg/L
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Bromodichloromethane
20.84 µg/L
No EPA limit set
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Lead
17 µg/L 113%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Dibromochloromethane
16.67 µg/L
No EPA limit set
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Barium
14.4 µg/L 0.7%
of the EPA limit 2000 µg/L
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Monochloroacetic Acid
14.3 µg/L
No EPA limit set
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Dichloroacetic Acid
13.38 µg/L
No EPA limit set
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Trichloroacetic Acid
7.595 µg/L
No EPA limit set
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Dibromoacetic Acid
5.965 µg/L
No EPA limit set
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Atrazine
5.293 µg/L 176%
of the EPA limit, at the 95th percentile of samples — 3 µg/L
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Bromoform
4.345 µg/L
No EPA limit set
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Xylenes, Total
2.75 µg/L 0%
of the EPA limit 10000 µg/L
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Monobromoacetic Acid
2.09 µg/L
No EPA limit set
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Simazine
0.5618 µg/L 14%
of the EPA limit 4 µg/L
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Ethylbenzene
0.5000 µg/L 0.1%
of the EPA limit 700 µg/L
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
2,4-D
0.2000 µg/L 0.3%
of the EPA limit 70 µg/L
Main supplier: NAPOLEON CITY · 8,858 people · 2019
1/1 SYR4
Pfpea
0.0091 µg/L
No EPA limit set
Main supplier: NAPOLEON CITY · 8,858 people · 2024
1/1 UCMR-5
Pfhxa
0.0071 µg/L
No EPA limit set
Main supplier: NAPOLEON CITY · 8,858 people · 2024
1/1 UCMR-5
PFBS
0.0036 µg/L
No EPA limit set
Main supplier: NAPOLEON CITY · 8,858 people · 2024
1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: NAPOLEON CITY · 8,858 people · 2025
1/1 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Napoleon

SupplierPopulation served
NAPOLEON CITY 8,858

Frequently asked questions about Napoleon tap water

Is Napoleon tap water safe to drink?

EPA testing detected 25 contaminants in the water serving Napoleon. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Napoleon?

1 public water supplier report drinking-water monitoring for Napoleon, Ohio to the EPA. Each is listed above with its population served.

What contaminants are in Napoleon's water?

The contaminants EPA monitoring detected in Napoleon include Nitrate, Fluoride, TTHM, Copper, Chloroform. The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.